Drill bore bit



FIG. 1 is a front elevational view of a drill bore bit showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side view, taken from the left side of FIG. 1;

FIG. 4 is a side view, taken from the right side of FIG. 1;

FIG. 5 is an enlarged top plan view thereof; and,

FIG. 6 is an enlarged bottom plan view thereof.

The broken lines in the figures are for illustrative purposes only andforms no part of the claimed design.

The ornamental design for a drill bore bit, as shown and described.